Supporting device for cinematographic apparatus



P. s. GAURIAL SUPPORTING DEVICE FOR CINEMATOGRAPHIC APPARATUS.

APPLICATION FILED MAR. 15. 1920.

PatentedJune 6, 1922.

Inventor.

UNITED STATES PIERRE SYLVAIN GAURIAT, OF PARIS, F

RANGE, ASSIGNOR T ETABLISSEMENTS CONTINSOUZA (SOCIETE ANGNYME), OF PARIS, FRANCE.

SUPPORTING DEVICE FOR CINEMATOGRAPHIC APPARATUS.

Specification of Letters latent.

Patented June 6, 1922.

Application filed March 15, 1920. Serial No. 366,093.

To all '10 lwm it may concern Be it known that I, PIERRE SYLVAIN GA'URIAT, citizen of the French Republic, residing at Paris, Department of the Seine, in France, and whose post-oitice address is 9 and 13 Rue des Envierges, have invented certain new and useful Improvements in Supportmg Devices for Cinematographic Apparatus; and I do hereby declare the fol-- lowing to be a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and use the same.

This invention has for its objecta supporting device for cinematographic apparatus, which finds its principal application to apparatus in which the protecting boxes con taining the reels of film are joined to the body itself of the apparatus. 7

The invention consists in mounting the lower protecting box of cylindrical form on a foot presenting a supporting surface of the same form so as to beable to communicate to the whole of the apparatus angular movements of fixed amplitude.

In the accompanying drawings Figure 1 represents a side view with a partial section through the lower box of a cinematographic apparatus provided with a support according to the invention.

Figure 2 is a view similar to that shown in Figure 1 representing the apparatus in an inclined position.

If reference be made to Figures 1 and 2, it will be seen that thebody of the apparatus is represented by 1, and is prolonged by two cylindrical parts 2 and 3, forming protecting boxes for the reels of film. The lower cylinder 3 is mounted on a foot or support 4 having a supporting surface of cylindrical form. In the constructional form shown, the cylinderS has one or more slots 5, situated in one or more planes at right angles to the axis of the cylinder and traversed by pins or bolts 6 having heads 7 and screwed into the foot 4. The length of theslots 5 is calculated so as to permit of fixed inclinations of amplitude of the cinematographic apparatus.

In order to regulate the inclination of the optical axis of the cinematographic post, it sufiices to exert a certain pressure on the whole of the apparatus, so that the lower cylinder 3 slides on the supporting foot 4. Any suitable locking system may be employed for fixing the apparatus in the desired position, and it is quite evident that the mode of guiding the lower cylinder 3 on the foot twhich hasbeen represented is only given by way of example, and any other suitable mode ofguiding might be employed.

The construction herein described is particularly advantageous in the cinematographic art. For instance it will be noted that the arrangement allows an angular displacement of the optical axis of the projecting post in a vertical plane, which displacement has no effect on the two axes of the view pro]ectedon the screen; that is to say the long sides remain horizontal and the short sides vertical irrespective of the. position of the optical axis, assuming of course,

that the foot of the support or base stands on a horizontal plane.

Claim.

In a cinematographic apparatus, the combination with an upper and lower circular film protecting receptacle forming a unitary structure with said apparatus, of a base for said apparatus provided with a semi-circular seat for receiving the lower curved edge of the lowermost receptacle, a circumferential slot formed in said lower edge and adjustable fastenings passing through said slot and secured in the base for, adjustably mounting the apparatus on said base to swing about the axis of said lowermost'receptacle, v I

In testimony whereof I aflix my signature.

PIERRE SYLVAIN GAURIAT. 

